>
Gymnotiformes (Knifefishes) >
Hypopomidae (Bluntnose knifefishes)
Etymology: Brachyhypopomus: Greek, brachys, eia = short + Greek, hypo = under + Greek, poma, -atos = cover (Ref. 45335); benjamini: Named for Benjamin T. D. Crampton, British diplomat and amateur ornithologist, collector of the holotype.
Eponymy: Benjamin Thomas David Crampton (d: 1972) is a British and Irish diplomat and amateur ornithologist. [...] (Ref. 128868), visit book page.
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
; air tawar bentopelagis. Tropical
South America: lower río Ucayali and río Nanay in Peru.
Ukuran / Berat / umur
Kematangan: Lm ?  range ? - ? cm
Max length : 13.5 cm TL jantan/; (Ref. 116763); 11.9 cm TL (female)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
Sirip dubur lunak: 174 - 197. Brachyhypopomus benjamini is distinguished from other species of the genus Brachyhypopomus by the absence of scales in middorsal region of anterior third of body (vs. presence in all congeners except B. provenzanoi) and by having speckled dorsal surface of body with small brown chromatophores on light brown background (vs. irregular pattern of distinct dark blotches on depigmented tan-colored background in B. provenzanoi).
Body shape (shape guide): elongated.
Facultative air-breathing in the genus (Ref. 126274); Inhabits small low-conductivity blackwater terra firme rainforest streams. Found in and around submerged debris and leaf litter, and in root mats and holes along the stream banks. Feeds on small aquatic invertebrates in the type locality. Occurs sympatrically and syntopically with Brachyhypopomus beebei, B. brevirostris, B. sullivani, B. verdii, and B. walteri. Spawns during the rainy season, approximately December-April, in the area of the type locality (Ref. 116763).
Siklus hidup dan perilaku kawin
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fekunditas | Larva
Crampton, W.G.R., C.D. de Santana, J.C. Waddell and N.R. Lovejoy, 2017. A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species. Neotrop. ichthyol. 14(4):e150146. (Ref. 116763)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: tidak ada kepentingan
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.00372 (0.00143 - 0.00967), b=3.06 (2.83 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Tingkat Trofik (Acuan 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Kerentanan Penangkapan Ikan (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |